(2) See Article 10 for additional regulations pertaining to two-family dwellings and town houses.

(3) See Article 10 for height regulations pertaining to dwellings in commercial districts.

(4) There shall be a side yard not less than 20 feet in width on the side of lot adjoining a residential district, and there shall be a rear yard not less than 30 feet in depth on rear side of lot adjoining a residential district.

(5) There shall be a rear yard of not less than 40 feet in depth on the rear side of lot adjoining a residential district.

(6) Grain elevators, gas holders, coal bunkers, industrial tanks or towers, and other similar structures may exceed 125 feet in height, but whenever any building or structure in the M-2 Heavy Industrial District adjoins or abuts upon a residential district, such building or structure shall not exceed 50 feet in height unless set back one foot from all property lines for each foot of additional height above 50 feet.